Protectorate Issue

[CoyoteTheClever]

I can't build the sentinel cannons that are required for victory. They weren't unlocked ever, and I've got the tech that unlocks sentinel complex and ring habs, so I'm not even sure what tech I'm missing to create these or if they are just broken.

[Alitari]

I just did a Full Search of the Tech Tree from the Research and Development menu ... and you need Arrival Culture, Networked Global Defense, and Trans-Interface Warfare as requirements for the Sentinel Complex faction project (so research those three, then research this one, then build it I guess?)